Impact tool



FIG. 1 is a front perspective view of an impact tool incorporating our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevation view thereof; and,

FIG. 5 is a right side elevational view thereof. 

The ornamental design for an impact tool, as shown. 